USB to RS485 Converter Adapter CH340 2-Wire Serial Interface

Description �� USB to RS485 Converter Adapter CH340 2-Wire Serial Interface | AuscomTech The USB to RS485 Converter Adapter is a compact, industrial-grade serial interface designed for stable and long-distance RS485 communication between a computer and RS485-enabled devices. Powered by the reliable CH340 chipset, this adapter delivers strong anti-interference performance, plug-and-play USB operation, and broad OS compatibility. It is ideal for PLC systems, MODBUS networks, PTZ cameras, Arduino projects, and industrial data acquisition where dependable serial communication is essential. ⭐ Key Features �� CH340 USB-to-Serial ChipsetProvides stable, high-reliability RS485 communication with wide driver support. �� RS485 Half-Duplex (2-Wire)Supports differential RS485 signalling for long-distance, noise-resistant data transfer. �� True Plug & Play OperationUSB-powered design requires no external power supply. �� Long-Distance CommunicationSupports transmission distances up to 1200 m (1.2 km) under suitable conditions. �� LED Status IndicatorsOnboard LEDs display Power, TX, and RX activity for easy diagnostics. ⚡ Wide Baud Rate SupportSupports standard baud rates from 75 bps to 115,200 bps (higher rates supported by chipset). �� Compact & Durable HousingABS enclosure designed for industrial, field, and workshop use. �� Technical Specifications Model: USB to RS485 Converter AdapterChipset: CH340USB Interface: USB Type-ARS485 Interface: 2-wire, half-duplex (A / B)Operating Voltage: 5V (USB powered)Baud Rate Range: 75 bps – 115,200 bps (chipset supports higher rates)Transmission Distance: Up to 1200 mLED Indicators: Power / TX / RXOperating Temperature: −40°C to 85°CMaterial: ABS plasticDimensions: 61 × 16 × 13 mmColour: BlackDriver: CH341SER (required on some operating systems) ⚠️ Important Notes • RS485 polarity (A/B) must be wired correctly• Non-isolated design — isolation recommended for high-noise or high-voltage environments• CH340 driver may need to be installed depending on operating system• Not compatible with RS232 devices �� Compatible With • PLC systems• MODBUS RTU devices• Arduino (via UART)• ESP32 / ESP8266• STM32 microcontrollers• PTZ cameras• RS485 sensors, meters, and controllers ⚙️ Typical Applications • PLC data communication• MODBUS RTU networks• Industrial automation systems• Long-distance serial communication• Sensor monitoring and logging• Embedded system debugging �� Package Includes • 1 × USB to RS485 Converter Adapter (CH340 Chipset)